Austin Dillon finished third in the NASCAR Nationwide Series championship point standings in his first year of full time competition in 2012, securing Rookie of the Year Honors en route to two race wins at Kentucky Speedway and leading the series in top-10 finishes.

In 2011, Dillon earned the NASCAR Camping World Truck Series driver’s championship in RCR’s No. 3 Chevrolet, becoming the youngest champion in series history at 21 years, six months and 22 days, and secured Camping World Truck Series race victories at Nashville Superspeedway and Chicagoland Speedway, 10 top-five and 16 top-10 finishes and led the series in pole awards with five. He was voted the Camping World Truck Series Most Popular Driver by fans in 2011.

Dillon Made his NASCAR Sprint Cup Series debut at Kansas Speedway in October 2011 driving an entry prepared by RCR and owned by Curb-Agajanian Racing and drove the No. 33 Rheem/Menards Chevrolet for Kevin Harvick, Inc. in four Nationwide Series races in 2011, earning one top-five and three top-10 finishes.
In his rookie season of Camping World Truck Series competition in 2010, Dillon earned Rookie of the Year honors and finished fifth in the Driver’s Point Standings, becoming only the second rookie to do so in nine seasons. After finishing outside the top 10 in five of his first seven Camping World Truck Series races, Dillon rebounded to end the season with 16 top-10 finishes and earned race wins at Iowa Speedway and Las Vegas Motor Speedway. Dillon competed in one Nationwide Series race in 2010, driving the No. 21 Bass Pro Shops Chevrolet at New Hampshire Motor Speedway.

He drove in four different stock car series as an RCR development driver in 2009, earning two top-15 finishes in two Camping World Truck Series races, a 24.8 average finish in four Nationwide Series starts, one top-five and two top-10 finishes in three Camping World Series races, and two runner-up finishes in two ARCA Racing Series starts. He won his second All-Star Shootout at The Dirt Track at Charlotte Motor Speedway in May 2009.

Dillon made his Nationwide Series debut at Richmond (Va.) International Raceway on September 7, 2008, and followed that up with a fourth-place finish at Memphis (Tenn.) Motorsports Park on October 25, 2008. He earned Rookie of the Year honors and finished second in the 2008 NASCAR K&N Pro Series East final point standings.
He won three major Dirt Late Model events in 2007, including the May All-Star Shootout at The Dirt Track at Charlotte Motor Speedway, before competing in asphalt Late Model cars and still considers Dirt Track Racing among his favorite hobbies.
He began his racing career in Bandaleros and Legends cars in 2005 before advancing to dirt Late Models in 2006.

Before he began his racing career, Dillon played stick-and-ball sports and appeared in the 2002 Little League World Series.